KR101802353B1 - Submersible pump equipped with nonpowered rotary type screen device - Google Patents

Abstract

The present invention relates to a submersible pump equipped with a rotary screen apparatus. More specifically, the present invention relates to a submersible pump comprising a screen apparatus installed on the submersible pump with an inlet to prevent foreign substances included in water from flowing in. According to the present invention, the screen apparatus comprises: a housing main frame installed on a bottom side of the submersible pump to communicate with the inlet, which has an internal operation space and a fastening hole formed on a bottom surface to communicate with the operation space; a bearing placed in the operation space; a hollow operation pipe inserted into the fastening hole, whose top side is fastened with the bearing; and a screen unit formed on a bottom side of the operation pipe to filter out the foreign substances included in water. The screen unit includes: hollow ring panels; interval longitudinal bars which connect the ring panels with each other to form a guide hole in between the ring panels; and a curved eddy current rotary wing on a side surface of the interval longitudinal bars. According to the present invention, a screen unit and an operation pipe are installed to rotate by water flowing into the submersible pump installed in water to discharge sewage or wastewater, and a scrapper is installed on the housing main frame to remove foreign substances on the screen unit. Accordingly, the present invention is able to prevent foreign substances such as suspended matter included in water from blocking a guide hole and a penetrating hole of the screen unit as well as from blocking the inflow of water.

Description

Technical Field [0001] The present invention relates to a submersible pump equipped with a non-powered rotary screen device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a submersible pump to which a non-powered rotary screen device is applied. More particularly, the present invention relates to a submersible pump having a screen portion and an operation pipe for rotating by water introduced into an underwater pump, And a scraper is provided on the main body to remove foreign matter from the screen portion so that the guide holes and the through holes of the screen portion are blocked by foreign matters such as floating matters contained in the water to prevent the inflow of water from being blocked, .

Generally, a submersible pump is a device for sucking a fluid such as water and transporting water to a destination by being installed on a collecting unit for treating sewage.

These submersible pumps are installed in water collecting facilities such as water collecting facilities, construction and industrial sites, and transfer the generated water. However, since the floating water or foreign matter contained in the water flows into the submerged pump in the process of transferring the water by the submerged pump, there is a problem that it is necessary to repeatedly remove the foreign matter that has flowed and deposited, .

In recent years, in order to solve such a problem, as disclosed in Korean Patent Application No. 10-2016-0038710, a strainer is provided so as to filter out foreign matter introduced into an underwater pump, and water is introduced into an underwater pump and foreign matter is filtered through a strainer Was developed.

However, since the conventional strainer which is installed in the submersible pump to filter out foreign matter is installed in a submersible pump in a fixed manner, there is a problem that the efficiency of filtering out foreign matter is lowered, and a plurality of holes are formed on the strainer in a comb- The foreign substances are trapped in the holes due to the continuous operation of the submersible pump, which obstructs the inflow of smooth water into the submerged pump by blocking the holes, thereby causing overloading of the submerged pump.

The above-mentioned invention means the background art of the technical field to which the present invention belongs, and does not mean the prior art.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a submerged pump installed in water for discharging sewage or sewage, in which a screen portion and an operation pipe And a scraper is provided on the housing main body to remove foreign substances on the screen portion so that the guide holes and the through holes of the screen portion are blocked by foreign substances such as floating matters contained in the water to prevent the inflow of water from being blocked, The present invention is directed to a submersible pump.

In order to achieve the above object,

And a screen device installed in an underwater pump having an inlet port and configured to prevent foreign substances contained in water from being introduced by an underwater pump, the screen device being installed at a lower portion of the underwater pump so as to communicate with the inlet, And a hollow operation tube which is inserted through the fastening hole and whose upper portion is fastened to the bearing, And a screen portion formed at a lower portion of the operation pipe to filter out foreign substances contained in the water, wherein the screen portion includes hollow ring panels and interval interval bars connecting the ring panels so as to form guide holes between the ring panels Characterized in that a swirling vane of curvature is further formed on one side of the gap longitudinal bar It provides an underwater pump unit, the screen is applied.

In one embodiment of the present invention, a scraper is further provided on the bottom surface of the housing body to remove foreign materials adhered to the ring panel and the interval vertical bar of the screen unit to be rotated, and the scrapers are provided with hooking projections And guide holes are formed in the gap vertical bars so that the locking protrusions pass through the guide holes.

According to an embodiment of the present invention, the ring panel may be formed in a conical shape such that the outer surface and the inner surface are tapered toward the upper side, and the vortex blades are formed on the inner surface.

According to an embodiment of the present invention, the submersible pump is further provided with a rotating device for rotating foreign matter contained in water by rotating the operation pipe and the screen unit.

Further, in one embodiment of the present invention, the rotating device includes an upper gear formed on a rotary shaft of the submersible pump, a shaft gear rotated by being engaged with the upper gear, And the lower gear is connected to an upper portion of the operation pipe to rotate the operation pipe and the screen unit by rotation of the lower gear.

The submerged pump to which the non-powered rotary screen device according to the present invention is applied is provided with a screen portion and an operation pipe for rotating by water introduced into an underwater pump installed in the water for discharging sewage or sewage and a scraper is provided on the housing main body, The guide member and the through hole of the screen unit are blocked by the foreign substance such as the floating matter contained in the water, thereby preventing the inflow of the water from being blocked.

1 is a cross-sectional view of a rotary screen device applied to an underwater pump according to an embodiment of the present invention.
2 is a partially enlarged view of a rotary screen device applied to an underwater pump according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating an operating state of a screen unit in a rotary screen device applied to an underwater pump according to an embodiment of the present invention.
4 is a view illustrating another embodiment of a screen unit in a rotary screen device applied to an underwater pump according to an embodiment of the present invention.
FIG. 5 is a view showing an operating state of a rotary screen device applied to an underwater pump according to an embodiment of the present invention.
6 is a view showing another embodiment of a rotary screen device applied to an underwater pump according to the present invention.
7 is a view showing another embodiment of a rotary screen device applied to an underwater pump according to the present invention.
8 is a view showing an operating state of another embodiment of a rotary screen apparatus applied to an underwater pump according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following embodiments are not intended to limit the scope of the present invention, but merely as an example, and various embodiments may be implemented through the present invention.

FIG. 1 is a cross-sectional view of a rotary screen device applied to an underwater pump according to an embodiment of the present invention, FIG. 2 is a partially enlarged view of a rotary screen device applied to an underwater pump according to an embodiment of the present invention, 3 is a diagram illustrating an operating state of a screen unit in a rotary screen apparatus applied to an underwater pump according to an embodiment of the present invention, and FIG. 4 is a schematic view of a rotary screen apparatus applied to an underwater pump according to an embodiment of the present invention FIG. 5 is a view illustrating an operating state of a rotary screen device applied to an underwater pump according to an embodiment of the present invention, and FIG. 6 is a view illustrating an operation of a submerged pump according to an embodiment of the present invention Fig. 7 is a view showing another embodiment of a rotary screen device applied to an underwater pump according to the present invention, and Fig. 8 is a view showing an operating state of another embodiment of a rotary screen device applied to an underwater pump according to the present invention.

As shown in the drawing, a rotary screen device 10 applied to an underwater pump according to the present invention includes an underwater pump (not shown) installed in a wastewater treatment facility or a wastewater treatment facility and having an inlet 110 for transferring water such as sewage and wastewater The screen device 10 is provided in the housing main body 20 so as to prevent foreign substances such as suspended substances contained in the water from being introduced into the underwater pump 100. The screen device 10 thus includes the housing main body 20, (30), an operation pipe (40), and a screen unit (50).

The housing main body 20 is made of metal or synthetic resin and has an open top surface. The housing main body 20 is installed in the lower part of the underwater pump 100 so as to communicate with the inlet 110, And a fastening hole 22 is formed on the bottom surface so as to communicate with the working space 21. As shown in Fig.

The housing main body 20 is fixed to the flange formed around the inlet 110 of the submerged pump 100 so as to maintain airtightness by screwing or welding and is fixed between the submerged pump 100 and the housing main body 20 It is desirable to further arrange the packing so as to keep the airtightness.

The bearing 30 is inserted into the operating space 21 and is disposed in a lower portion of the operating space 21 as shown in FIG.

The operation pipe 40 is made of a metal material or a synthetic resin material and is formed into a hollow tube shape. The operation pipe 40 is inserted through the fastener 22 and the upper portion is fastened to the bearing 30 and rotated.

Preferably, the fastener 22 is formed to have a diameter larger than that of the operation pipe 40 so as to be kept at a predetermined distance to reduce friction with the rotary pipe 40.

The screen unit 50 is formed at a lower portion of the operation pipe 40 to filter foreign substances such as suspended substances contained in water. The screen unit 50 includes a hollow ring panel 51, And an interval vertical bar 52 connecting the ring panels 51 so that a guide hole 511 is formed between the ring panels 51. A curved vortex 52 is formed on one side of the interval vertical bar 52, The rotating blades 521 are integrally formed.

The ring panel 51 is formed in a ring shape by forming a through hole 512 at the center of a panel that is a circular plate. The ring panel 51 is formed of a metal material or a synthetic resin material. Respectively.

The spacing bars 52 are formed in the shape of a square bar and have coupling grooves 523 formed along the longitudinal direction in the drawing so as to keep the ring panels 51 at a predetermined interval on one side.

As shown in FIG. 3, the spacing bar 52 is fixed to the through-hole 512 of the ring panel 51 by being adhered or fused by being fitted into the through-hole 512 of the ring panel 51, And the ring panel 51 is fixed by fixing the ring panel 51 in the four-sided cross direction of the through hole 512. Alternatively, a plurality of the interval vertical bars 52 are fastened to the through hole 512 in addition to the above- It is also possible to do.

At this time, guide grooves 511 are formed between the ring panels 51 by the interval vertical bar 52 as shown in FIG. 3, and the guide holes 511 and 511 are formed by driving the submerged pump 100, The water flows into the through-hole 512.

A scraper 23 is further provided on the bottom surface of the housing main body 20 to remove foreign matter adhering to the ring panel 51 and the interval vertical bar 52 of the screen unit 50 to be rotated, And further the guide holes 522 are formed in the spacing bar 52 so that the locking protrusions 231 pass through the guide holes 522. [

The upper end of the scraper 23 is adhered or fused to one side of the bottom surface of the housing main body 20 and fixed to the scraper 23 at a predetermined interval in the drawing, 231 are drawn into the guide hole 511 to remove foreign substances disposed on the ring panel 51, the interval vertical bar 52 and the inlet by the rotation of the screen portion 50 .

At this time, the spacing bar 52 is formed with the guide holes 522 so that the locking protrusion 231 passes through the gap.

The operation of the rotary screen device 10 applied to the underwater pump 100 of the present invention having the above structure will now be described. The operation of the underwater pump 100 causes water and foreign matter to flow into the inlet The screen unit 50 and the operation pipe 40 are rotated by the bearing 30 while the vortex rotating blades 521 are pressed by the water in the process of moving the screen unit 50 to the screen 110.

Thereafter, the ring panel 51 of the screen unit 50 to be rotated and the interval vertical bar 52 are separated and coalesced into foreign substances such as suspended substances or hair contained in the water, and the inlets 110 of the submersible pump 100 So that it can be pulverized to a size smaller than the size of the inlet 110 by blowing by rotation, and then discharged.

The scraper 23 removes foreign materials adhering to the ring panel 51 and the interval vertical bar 52 by the screen unit 50 to be rotated and thereby causes the screen unit 50 It is possible to prevent the through hole 512 and the guide hole 511 from being clogged by sticking to the foreign matter.

The outer surface of the ring panel 51 may be formed with striking protrusions with a predetermined distance therebetween so as to hit and crush foreign matter by the rotation of the screen unit 50.

Referring to FIG. 6, the ring panel 51 is formed so as to have a conical shape with its outer surface and inner surface tapered toward the upper side, and curved vortices 513 are formed on the inner surface thereof, The vortex blades 513 are pressed by the flowing water to improve the rotational force of the screen unit 50.

At this time, it is preferable that the vortex blades 513 are curved in the same rotational direction as the vortex rotating vane 521.

7 and 8, a rotating device 60 may be further provided in the underwater pump 100 to rotate the operation pipe 40 and the screen unit 50 to filter foreign substances contained in the water have.

The rotary device 60 includes an upper gear 61 formed on the rotary shaft 120 of the submersible pump, a shaft gear 62 meshed with the upper gear 61, The lower gear 63 is connected to the upper portion of the operation pipe 40 and is connected to the operation pipe 40 by rotation of the lower gear 63, And to rotate the screen unit (50). Gears are formed on the upper and lower portions of the shaft gear 62 to engage with the upper gear 61 and the lower gear 63.

The diameter of the upper gear 61 and the diameter of the lower gear 63 is smaller than the diameter of the rotating shaft 120 so as to slow the rotating speed of the screen unit 50 to be lower than the rotating speed of the rotating shaft 120 of the underwater pump 100. [ And the power transmission structure to be transmitted is composed of the upper gear 61, the lower gear 63, and the shaft gear 62 to reduce or reduce the rotation speed, thereby maintaining or improving the efficiency of the water flow.

The submersible pump to which the rotary screen device according to the present invention is applied has been described in detail with reference to the drawings.

The submerged pump to which the rotary screen device according to the present invention is applied rotates the screen unit and removes the foreign substances sticking to the screen unit rotated by the scraper so that the foreign matter generated in the conventional fixed screen device It is necessary to perform maintenance from time to time and solve the problem of lowering the efficiency of water inflow.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

10: Screen device 20: Housing body
30: bearing 40: working tube
50: screen portion 60: rotating device
21: working space 22: fastener
23: scraper 231:
51: ring panel 511: guide
512: through hole 513: vortex blade
52: Spacing Vertical Bar
521: Vortex rotating blade 522: Guide hole
523: Coupling groove
61: upper gear 62: shaft gear
63: Lower gear
100: Submersible pump 110: Inlet port
120:

Claims (5)

And a screen device installed on an underwater pump having an inlet port and configured to prevent foreign substances contained in water from being introduced by an underwater pump, the screen device being installed at a lower portion of the underwater pump so as to communicate with the inlet, And a hollow operation tube which is inserted through the fastening hole and whose upper portion is fastened to the bearing, And a screen portion formed at a lower portion of the operation pipe to filter out foreign substances contained in the water, wherein the screen portion includes hollow ring panels and interval interval bars connecting the ring panels so as to form guide holes between the ring panels And a rotary screen device in which a curved vortex rotary blade is further formed on one side of the interval vertical bar is applied In the submerged pump,
A scraper is further provided on the bottom surface of the housing main body to remove foreign objects adhering to the ring panel and the interval vertical bar of the screen unit to be rotated, and the scrapers further have hooking protrusions to be drawn into the guide holes,
Further, guide holes are formed in the spacing bar so that the locking protrusions pass through the guide holes,
Wherein the ring panel is tapered so that the outer surface and the inner surface are tapered toward the upper side so as to be formed into a conical shape, and curved vortices are further formed on the inner surface,
The underwater pump further includes a rotating device for rotating the operation pipe and the screen unit to filter out foreign substances contained in the water,
The rotary device includes an upper gear formed on a rotary shaft of the submersible pump, a shaft gear rotated by engaging with the upper gear, and a lower gear engaged with a lower portion of the shaft gear,
The lower gear is connected to the upper portion of the operating pipe to rotate the operation pipe and the screen portion by the rotation of the lower gear,
Wherein the housing main body is screwed or welded to the flange formed around the inlet port of the submersible pump so as to maintain airtightness and a packing is further disposed between the submerged pump and the housing main body to maintain airtightness,
Wherein the fastener is formed to have a diameter larger than that of the operation tube so as to be kept at a predetermined distance so as to reduce friction with the rotary tube,
A plurality of striking projections are formed on the outer side surface of the ring panel at predetermined intervals so as to hit and crush foreign matter by the rotation of the screen unit,
The vortex blades are formed to be curved in the same rotational direction as the vortex rotating blades,
Wherein the diameter of the upper gear and the diameter of the lower gear is larger than the diameter of the rotating shaft so as to slow the rotating speed of the screen unit lower than the rotating shaft rotating speed of the submersible pump.

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